Converting a list to a string

I have extracted some data from a file and want to write it to a second file. But my program is returning the error:

sequence item 1: expected string, list found

This appears to be happening because write() wants a string but it is receiving a list.

So, with respect to this code, how can I convert the list buffer to a string so that I can save the contents of buffer to file2 ?

file = open('file1.txt','r')
file2 = open('file2.txt','w')
buffer = []
rec = file.readlines()
for line in rec :
    field = line.split()
    term1 = field[0]
    buffer.append(term1)
    term2 = field[1]
    buffer.append[term2]
    file2.write(buffer)  # <== error
file.close()
file2.close()

---

Try str.join :

file2.write(' '.join(buffer))

Documentation says:

Return a string which is the concatenation of the strings in the iterable iterable. The separator between elements is the string providing this method.

---

''.join(buffer)

---

file2.write( str(buffer) )

Explanation: str(anything) will convert any python object into its string representation. Similar to the output you get if you do print(anything) , but as a string.

NOTE: This probably isn't what OP wants, as it has no control on how the elements of buffer are concatenated -- it will put , between each one -- but it may be useful to someone else.

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